Name: PURIFI PTT6.5X08-NFA-01 Woofer Medio-Bassi
Brand: PURIFI
SKU: PTT6.5X08-NFA-01
Price: 429.95 EUR
Availability: InStock
Rating: 5 (2 reviews)

6.5" | 8 Ω

€ 355,33€ 429,95 1 In magazzino6 Arrivo previsto il 27-02-2026

Spedizione gratuita a partire da € 199
Ordinato ora, spedito lunedì
Minimo due anni di garanzia
Periodo di recesso di 45 giorni per i resi

Dicono di noi:

Confronta

Richiedi preventivo

Hai una domanda su questo prodotto?

Il nostro addetto è lieto di aiutarvi a trovare il prodotto giusto

Descrizione del prodotto PURIFI PTT6.5X08-NFA-01 Woofer Medio-Bassi

The PURIFI PTT6.5X08-NFA-01 a is a refined bass-mid-woofer, incorporating state of the art technology that is based on extended research. The result is a long-stroke woofer with unparalleled performance.

Highlights

A whole new take on driver design
PURIFI’s Natural Surround
Extreme low distortion over full excursion range
Engineered and manufactured in Denmark
Excellent midrange performance
High power handling
High linear excursion limit with constant force factor

Product Details

PURIFI PTT6.5X08-NFA-01 bass-mid-woofer

PURIFI is a fresh company that designs and manufactures extremely high-performance woofers and amplifier modules. Don’t let the freshness fool you; Their leadership team consists out of some well-respected audio technology pioneers. PURIFI developed a deep understanding of many performances degrading aspects for both amplifiers and transducers. Thanks to this understanding the PTT6.5X08-NFA-01 is the most refined bass-mid woofer from our woofer category.

Besides this 8 ohm version, there is also a 4-ohm version and a 6,5" passive radiator available. Looking for similar performance, but something smaller? Take a look at the 4" PTT4.0W04.

The challenge

Loudspeaker drivers are known to add a large, if not the largest, amount of distortion to an audio signal chain. Reducing this distortion is a challenge with the complication of fine-tuning to improve one part (e.g. harmonic distortion) often results in a degradation of another part (e.g. intermodulation distortion). These distortions consist out of several separate distortion mechanisms. By carefully mapping and completely understanding these mechanisms, PURIFI succeeded in improving the overall performance by a large degree.

A whole new take on driver design

PURIFI developed mathematical models for the motor system, suspension, cone, and surround. These models allowed for the optimization of each distortion mechanism separately. This systematic approach reduced all distortions mechanisms and keeps intermodulation distortion low. The result makes that the PTT6.5X08-NFA-01 is a compact 6.5” driver that parallels or even surpasses the bass performance of a low excursion, a large surface driver, while it also excels in midrange performance.

The mechanism	Improvement
Low force factor modulation	Current through the voice coil is not distorted by cone movement. Gives undistorted midrange regardless of the excursion
Constant force factor over excursion - Bl(x)	Prevents amplitude devotions of midrange output during the large excursion (sometimes called ‘burbling’)
Low surround radiation distortion	Reduces harmonic and intermodulation distortion caused by surround
Low magnetic hysteria distortion	Reduces harmonic and intermodulation distortion caused by magnetic traces left by the previous cycle

FAQ

Q: Should I go with this 4 ohm or with the 8-ohm version?

A: Both woofers have similar distortion performance and the T/S parameters are alike. The 4-ohm coils of the PTT6.5W04 allow more current to flow on a similar drive voltage. This gives higher sensitivity and is preferred in most applications. If you have an amplifier that is not comfortable with low impedance loads or has specific requirements, such as parallel woofers, this PTT6.5W08 might be more favorable.

Q: Why is this surround odd shaped?

A: This is the PURIFI Natural Surround. Conventional surrounds create distortion as they deform. The shape of the Natural Surround reduces cone edge resonances and distortion. It might be odd-looking, but form follows function here. A more detailed look shows that the surround actually represents a complex sound wave. We are told that the Natural Surround is also called ‘wormy’ by insiders.

Recensioni

2 reviews

Recensisci questo prodotto

5 di 5

I heard it in a small box. It has a really clean midrange but the most important part was the bass. Since the small box bass response was not proper, we started to force with +11dB (PEQ) under 50Hz. It managed that huge load well, and the bass respose become the best I have heard/feel. Despite 40m2 room size it fills the room with 10-20Hz bass (from Interstellar sound track), fill mean harder beat than a Kii Three with 4x6.5" drivers (without BXT...

Da Dudu on 29 Maggio 2025

Da Bogdan on 28 Ottobre 2024

Tutti i marchi

Categorie

PURIFI PTT6.5X08-NFA-01 Woofer Medio-Bassi